同伴行列

Companion matrix - matrix with a specific relation to its characteristic polynomial p. Article “同伴行列” in Japanese Wikipedia has 9.9 points for quality (as of July 1, 2025). The article contains 3 references and 8 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 0.52 points.

This article has the best quality in Greek Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “同伴行列”, its content was written by 6 registered users of Japanese Wikipedia and edited by 163 registered Wikipedia users in all languages.

The article is cited 10 times in Japanese Wikipedia and cited 423 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Japanese): #102063 in August 2015
• Global: #93355 in December 2014

The highest popularity rank from 2008:

• Local (Japanese): #274522 in February 2025
• Global: #315452 in December 2008

There are 13 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	Greek (el) Συνοδός πίνακας		20.9256
2	French (fr) Matrice compagnon		20.5164
3	English (en) Companion matrix		17.9609
4	German (de) Begleitmatrix		17.9085
5	Catalan (ca) Matriu acompanyant		13.4232
6	Ukrainian (uk) Супутня матриця		10.704
7	Czech (cs) Doprovodná matice		10.2444
8	Spanish (es) Matriz compañera		10.1617
9	Japanese (ja) 同伴行列		9.9404
10	Russian (ru) Сопровождающая матрица		4.7326

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "同伴行列" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Companion matrix		424 533
2	French (fr) Matrice compagnon		144 476
3	German (de) Begleitmatrix		61 252
4	Italian (it) Matrice compagna		31 281
5	Japanese (ja) 同伴行列		25 325
6	Russian (ru) Сопровождающая матрица		21 157
7	Spanish (es) Matriz compañera		14 343
8	Hebrew (he) מטריצה מלווה		9 247
9	Slovenian (sl) Spremljevalna matrika		1 426
10	Ukrainian (uk) Супутня матриця		1 027

More...

The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "同伴行列" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Companion matrix		1 983
2	French (fr) Matrice compagnon		572
3	German (de) Begleitmatrix		319
4	Japanese (ja) 同伴行列		160
5	Italian (it) Matrice compagna		119
6	Russian (ru) Сопровождающая матрица		69
7	Spanish (es) Matriz compañera		67
8	Hebrew (he) מטריצה מלווה		15
9	Slovenian (sl) Spremljevalna matrika		9
10	Czech (cs) Doprovodná matice		8

More...

The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "同伴行列" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Companion matrix		43
2	French (fr) Matrice compagnon		33
3	German (de) Begleitmatrix		23
4	Italian (it) Matrice compagna		20
5	Russian (ru) Сопровождающая матрица		12
6	Hebrew (he) מטריצה מלווה		8
7	Spanish (es) Matriz compañera		7
8	Japanese (ja) 同伴行列		6
9	Ukrainian (uk) Супутня матриця		3
10	Catalan (ca) Matriu acompanyant		2

More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "同伴行列" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Catalan (ca) Matriu acompanyant		0
2	Czech (cs) Doprovodná matice		0
3	German (de) Begleitmatrix		0
4	Greek (el) Συνοδός πίνακας		0
5	English (en) Companion matrix		0
6	Spanish (es) Matriz compañera		0
7	French (fr) Matrice compagnon		0
8	Hebrew (he) מטריצה מלווה		0
9	Italian (it) Matrice compagna		0
10	Japanese (ja) 同伴行列		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "同伴行列" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Companion matrix		169
2	Slovenian (sl) Spremljevalna matrika		110
3	French (fr) Matrice compagnon		95
4	Japanese (ja) 同伴行列		10
5	German (de) Begleitmatrix		9
6	Spanish (es) Matriz compañera		7
7	Catalan (ca) Matriu acompanyant		5
8	Russian (ru) Сопровождающая матрица		5
9	Hebrew (he) מטריצה מלווה		4
10	Italian (it) Matrice compagna		3

More...

#	Language	Value
ca	Catalan Matriu acompanyant
cs	Czech Doprovodná matice
de	German Begleitmatrix
el	Greek Συνοδός πίνακας
en	English Companion matrix
es	Spanish Matriz compañera
fr	French Matrice compagnon
he	Hebrew מטריצה מלווה
it	Italian Matrice compagna
ja	Japanese 同伴行列
ru	Russian Сопровождающая матрица
sl	Slovenian Spremljevalna matrika
uk	Ukrainian Супутня матриця

Best Rank

Japanese: #274522 02.2025

Global: #315452 12.2008

Best Rank

Japanese: #102063 08.2015

Global: #93355 12.2014

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information